<html>
    <head>
		<meta charset="utf-8">
		<title>相对定位</title>
		<link rel="stylesheet" href="./css/relative.css">
	</head>
    <body>
        <div id="father">
            <div class="box1">区块一</div>
			<div class="box2">区块二</div>
			<div class="box3">区块三</div>
        </div>
    </body>
</html>
